diff --git a/pkgs/development/libraries/haskell/hoogle/4.2.34.nix b/pkgs/development/libraries/haskell/hoogle/4.2.34.nix
new file mode 100644
index 00000000000..9d4b282f288
--- /dev/null
+++ b/pkgs/development/libraries/haskell/hoogle/4.2.34.nix
@@ -0,0 +1,30 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, aeson, binary, blazeBuilder, Cabal, caseInsensitive
+, cmdargs, conduit, deepseq, filepath, haskellSrcExts, httpTypes
+, parsec, QuickCheck, random, resourcet, safe, shake, tagsoup
+, temporary, text, time, transformers, uniplate, vector
+, vectorAlgorithms, wai, warp
+}:
+
+cabal.mkDerivation (self: {
+  pname = "hoogle";
+  version = "4.2.34";
+  sha256 = "0vldc7s3nq70jxmnxdzlfrlwg0pxw0lq1lcd53klj2ksjkqhm5jg";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [
+    aeson binary blazeBuilder Cabal caseInsensitive cmdargs conduit
+    deepseq filepath haskellSrcExts httpTypes parsec QuickCheck random
+    resourcet safe shake tagsoup text time transformers uniplate vector
+    vectorAlgorithms wai warp
+  ];
+  testDepends = [ filepath temporary ];
+  testTarget = "--test-option=--no-net";
+  meta = {
+    homepage = "http://www.haskell.org/hoogle/";
+    description = "Haskell API Search";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/lambdabot/default.nix b/pkgs/development/libraries/haskell/lambdabot/default.nix
index 88cd164ae4e..6b09752f7d4 100644
--- a/pkgs/development/libraries/haskell/lambdabot/default.nix
+++ b/pkgs/development/libraries/haskell/lambdabot/default.nix
@@ -16,6 +16,7 @@ cabal.mkDerivation (self: {
   sha256 = "19pkm4m2xk9ziai3ka4scxjavi0as8dmivz9q6vg3npmv0kyhkhb";
   isLibrary = true;
   isExecutable = true;
+  patches = [ ./deps.patch ];
   buildDepends = [
     arrows binary brainfuck dataMemocombinators dependentMap
     dependentSum dependentSumTemplate dice editDistance filepath
diff --git a/pkgs/development/libraries/haskell/lambdabot/deps.patch b/pkgs/development/libraries/haskell/lambdabot/deps.patch
new file mode 100644
index 00000000000..a9222806719
--- /dev/null
+++ b/pkgs/development/libraries/haskell/lambdabot/deps.patch
@@ -0,0 +1,21 @@
+--- a/lambdabot.cabal.orig	2014-10-16 17:39:16.000000000 -0500
++++ b/lambdabot.cabal	2014-10-16 18:26:58.000000000 -0500
+@@ -166,7 +166,7 @@
+                         edit-distance           >= 0.2,
+                         filepath                >= 1.3,
+                         haskeline               >= 0.7,
+-                        haskell-src-exts        >= 1.14.0,
++                        haskell-src-exts        >= 1.14.0 && < 1.16,
+                         hstatsd                 >= 0.1,
+                         hslogger                >= 1.2.1,
+                         HTTP                    >= 4000,
+@@ -174,7 +174,8 @@
+                         misfortune              >= 0.1,
+                         monad-control           >= 0.3,
+                         mtl                     >= 2,
+-                        network                 >= 2.3.0.13,
++                        network                 >= 2.6,
++                        network-uri             >= 2.6,
+                         oeis                    >= 0.3.1,
+                         time                    >= 1.4,
+                         parsec                  >= 3,
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index ccad24235f6..75669a778ea 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1244,6 +1244,7 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   hoodleTypes = callPackage ../development/libraries/haskell/hoodle-types {};
 
+  hoogle_4_2_34 = callPackage ../development/libraries/haskell/hoogle/4.2.34.nix {};
   hoogle = callPackage ../development/libraries/haskell/hoogle {};
   hoogleLocal = callPackage ../development/libraries/haskell/hoogle/local.nix {};
 
@@ -1468,7 +1469,12 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   languageHaskellExtract = callPackage ../development/libraries/haskell/language-haskell-extract {};
 
-  lambdabot = callPackage ../development/libraries/haskell/lambdabot {};
+  lambdabot = callPackage ../development/libraries/haskell/lambdabot {
+    haskellSrcExts = self.haskellSrcExts_1_15_0_1;
+    hoogle = self.hoogle_4_2_34.override {
+      haskellSrcExts = self.haskellSrcExts_1_15_0_1;
+    };
+  };
 
   lambdabotWrapper = callPackage ../development/libraries/haskell/lambdabot/wrapper.nix {
     mueval = self.muevalWrapper.override {